baber/WOPTO huggingface dataset:
Patent GB-527697-A (GB)
Abstract: 527,697. Melamine. SOC. OF CHEMICAL INDUSTRY IN BASLE, Feb. 3, 1939, Nos. 3635, 3636 and 3637. Convention dates, Feb. 3, 1938, Oct. 25, 1938, and Jan. 12, 1939. [Class 2 (iii)] Melamine is prepared by heating guanidine or biguanide, alone or in admixture with cyanamide or dicyandiamide, in a closed vessel to a temperature above 100‹C. Ammonia may be added, or, to avoid the production of high pressure, some of the ammonia formed during the reaction may be withdrawn. Instead of the guanidine or biguanide these may be used, at least in part, a salt of the base, and this salt may be used together with a salt of cyanamide or dicyandiamide, which will liberate guanidine or biguanide from its salt. The reaction may be conducted in presence of a diluent. The examples describe the heat treatment in a pressure vessel of (1) guanidine, (2) dicyandiamide and guanidine, (3) guanidine and cyanamide, (4) biguanide, (5) biguamide in presence of benzene, (6) guanidine carbonate mixed with sodium cyanamide, (7) a mixture of biguanide sulphate, sodium cyanamide and dicyandiamide in presence of ammonia. Specification 502,148 is referred to.
Patent GB-1483670-A (GB)
Title: Process for the production of endless filament yarns of synthetic material
IPC: D02G1/02
Filed: 1974-12-06
Abstract: 1483670 Simultaneous stretch-texturing of filaments BAYER AG 6 Dec 1974 [6 Dec 1973] 52839/74 Heading D1F To simultaneously stretch and texture a filament yarn at speeds of 300 to 1200 metres/ min. the yarn is fed from delivery rollers 3 over heat-fixing element 4, through false twister 6 and around stretching gasket 7, the distance S between rollers 3 and the godet being 55 to 180 cm and the distance X between the twister outlet and the godet being from 5 to 30 cm. Element 4 is 30 to 70 cm long. The yarn is cooled in zone 5 by a contact cooler 20 to 50 cm long, or by an air nozzle forming a cooling zone 3 to 15 cm long. The ratio of filament tension at the inlet and outlet of element 4 is from 1:1.01 to 1:1.3. The production of polyamide and polyester yarns is exemplified. Textured polyamide filaments so produced may have a snarl factor of less than 0.1/kg, a tensile strength greater than 402 cN/tex and a deviation in cold water shrinkage of at most 15%. Textured polyester filaments so produced may have a snarl factor of less than 0.1/kg, a tensile strength greater than 35 cnN/tex and a crimp stability greater than 60%. The snarl factor is the number of filamentary breaks/kg.
Patent GB-1591638-A (GB)
Title: Feed value of vegetable matter such as straw
IPC: A23K50/15
Filed: 1977-12-20
Abstract: Plant stems are confined in an airtight bag (2), which is void of air, after which ammonia is supplied. After a suitable period of time, the stems are removed and can serve as a food substance. The end piece (nozzle) (1) of a tube (6) is applied firmly against the walls of the bag (2) by means of two nuts (11, 12), a seal (13, 14) being placed between these nuts and the wall (2). An elastic sleeve (5) firmly clasps around the tube (6) and an insertion pipe (4) so as to produce a leaktight connection. A fastener (15) applies the sleeve (5) to the tube (6), and gripping-clamp jaws (7, 8) compress, by virtue of elastic strings (10), the sleeve (5) around the pipe (4). This method supplies a uniform food substance with a low percentage of ash and without residual sediment which could be harmful to animals. <IMAGE>
Patent GB-1494078-A (GB)
Title: Inductors and methods of constructing them
IPC: H01F17/04
Filed: 1973-11-16
Abstract: 1494078 Inductors EMI Ltd 6 Jan 1975 [16 Nov 1973] 53364/73 Heading HIT An inductor comprises a coil encapsulated in resin coated ferromagnetic particles adjacent particles being caused to adhere to one another by their coatings. In an example 50/50 nickeliron alloy powder is coated with 0À5% by weight of a thermosetting epoxide resin binder by dissolving the resin in a mixture of 80 parts of acetone to 20 of methanol, adding the powder and evaporating off the solvent whilst stirring the slurry till dry. The coil and coated powder are placed in a container and subjected to hydraulic pressure for several seconds causing the coated powder particles to adhere to one another. The encapsulated coil is then clamped lightly and the resin cured. The inductor is then vacuum impregnated with a low viscosity epoxide resin and cured again. Preferably the length of the coil is not greater than twice its diameter. Alternatives to the 50/50 nickel-iron powder are: 100% nickel, a 47À5% nickel-iron alloy, atomized iron powder, powder made by embrittlement procedures, iron powders made by the carbonyl process, sponge and electrolytically produced powders, or those produced by electrodeposition.
Patent GB-1377649-A (GB)
Title: Speed control system for electric motors
IPC: B60L11/18
Filed: 1971-11-17
Abstract: 1377649 Control of DC motors FABBRICA ITALIANA MAGNETI MARELLI SpA 17 Nov 1971 [17 Nov 1970] 53399/71 Heading H2J To prevent sudden velocity changes of the D.C. motor 2 of a battery-operated vehicle controlled by an accelerator pedal 1 varying the voltage applied to the motor by control of adjustable supply circuits 3, 4, which may provide either a continuous or pulsed waveform, the sudden depression of the pedal 1 to its fullspeed position is arranged to apply the full battery voltage to the motor after a time delay inversely proportional to the motor voltage at the instant of depression, during which the applied voltage is increased by circuits 3, 4 and at the end of which a switch 7 closes to by-pass circuits 3, 4 and connect the battery directly to the motor. Full depression of the pedal 1 closes a switch 9 to apply the battery voltage to the anode A of a programmable unijunction transistor PUT, whose gate G permanently receives the battery voltage via divider R2, R3 and whose anode A also receives the voltage at the motor terminal 11 via a filter 12 and capacitor C. Thus the transistor PUT conducts after a time following the closure of switch 9, which time is inversely proportional to the difference between the voltage at gate G and the voltage at terminal 11 at the instant of closure. Conduction of transistor PUT fires an SCR to energize a coil 8 controlling the switch 7. A further pedal (not shown) is operable to brake the vehicle and reverse its direction of travel by applying reverse current to the motor 2, this further pedal also controlling the switch 9. To prevent closure of the switch 7 during such braking, the capacitor C is shunted by a resistor R5 and contacts 15 controlled by the coil 14 of a reed switch 13, this coil being connected across the armature of the motor 2 to be energized through a diode (not shown) only by reverse current during braking, thus closing the contacts 15 to earth the anode A of the transistor PUT during this operating condition. Failure of one or both of circuits 3, 4 after closure of the switch 9 is arranged to prevent the firing of the transistor PUT, in that the absence or reduction of the voltage at terminal 11 will prevent the voltage at anode A from rising to equal that at the gate G.
Patent GB-1450196-A (GB)
Title: Light-sensitive preparations
IPC: G03F7/021
Filed: 1973-11-23
Abstract: 1450196 Photo-resist materials containing phosphors HOECHST AG and LICENTIA PATENT-VERWALTUNGS-GmbH 23 Nov 1973 [25 Nov 1972 2 March 1973] 54431/73 Heading G2E A photo-resist material for producing CRT screens comprises a phosphor, a binder and a lightsensitive compound which is the condensation product of (R 1 -R 3 ) p -R 2 -N 2 X<SP>1</SP> and a unit B connected by a methylene group wherein X<SP>1</SP> is an anion of an aliphatic monosulphonic acid, p is 1 to 3, R 1  is an aromatic carbo- or hetero-cyclic group which may be substituted or unsubstituted and has at least one position capable of condensing with formaldehyde, R 2  is arylene, R 3  is a single bond, -NH-, -O-, -S- -(CH 2 ) q -NR 4 , -CO-NR 4 , -So 2 -NR 4 -, -O(EH 2 ) r -NR 4 . -S(CH 2 ) r -NR 4 -, -OR 6 O-, or -(CH 2 ) q  NR 4  (CU 2 ) r NR 5 , wherein q is 0-5, r is 2-5, R4 is H, alkyl, aralkyl or aryl, Rs is H or alkyl and R6 is arylene, and B is derived from an arylamine, a phenol, a thio-phenol or thio-ether, a phenol ether, an amide or an aromatic carbo- or hetero-cyclic compound. Specified binders are polyvinyl alcohol or pyrrolidone, gelatine and methyl cellulose. Specified diazo condensates are those of Specification 1359522. Specified phosphors are Y or Gd compounds activated by Eu or Zn or Cd sulphides activated by Cu or Ag.
Patent GB-545818-A (GB)
Abstract: 545,818. Magnetic switches. LUCAS, Ltd., J., and MARLOW, F. J. Dec. 12, 1940, No. 17607. [Class 38 (v)] In a make-andbreak switch for the ignition of internalcombustion engines the movable contact d is oscillated by the rotation of a permanent, magnet j with imbricated poles m. The movable contact member which pivots about f carries an armature i which is intermittently attracted by the magnetic flux between adjacent poles.
Patent GB-1163954-A (GB)
Title: A Door Panel Incorporating an Indicator
IPC: E05B41/00
Filed: 1966-12-07
Abstract: 1,163,954. " Free/engaged " indicator. OTTO GROSSSTEINBECK G.m.b.H. 7 Dec., 1966 [8 Dec., 1965], No. 54714/66. Heading G5C. [Also in Division E2] A door panel assembly comprises a panel 4 and a member 1 of plastics material, member 1 being formed with non-circular bores 10 and 11, for rotating the member with a handle or key (not shown), an annular groove 7, for retaining the member after it has been snapped through an aperture 3 in the panel, a disc 2, which may be viewed through a window 9 in the panel for ascertaining whether or not a room behind the door is occupied, and a portion 8 for providing clearance between the disc and the panel. Bore 10 may be formed with axial grooves, with which splines formed on the shaft of a handle (not shown) may engage. Bore 11 may be of polygonal section.
Patent GB-1400520-A (GB)
Title: Dispensing apparatus
IPC: A24F15/04
Filed: 1972-11-28
Abstract: 1400520 Dispensers LAI CHI KEUNG [trading as CHI SHING CO] 15 Oct 1973 [28 Nov 1972] 55019/72 Heading B8P A dispenser for cigarettes, matches, &c. comprises a hopper 2 and a dispenser member 5 which slides through a slot in the hopper floor between a first position above the hopper floor and a second position level with the floor, the dispenser member 5 being biased towards the first position. The member 5 is rigidly connected to a plunger 8 which extends through an aperture in an outer casing 1. When the plunger 8 is depressed against the action of a spring 12 the member 5 is lowered to the hopper floor so that a cigarette will fall into a groove 7 in the upper edge of the member 5. When the plunger is released the cigarette is lifted to a slot 15 in the outer casing 1. One end 21 of the grooved edge 7 of the member 5 is cut away so that when a cigarette is lifted to the slot 15 it will be tipped up. As the plunger 8 is depressed a wire spring is forced away from the base of the hopper and then freed to snap back against the hopper and so agitate the contents. In a modification, projections, rigidly connected to the dispenser member 5, pass through apertures in the hopper floor to agitate the contents.
Patent GB-1348399-A (GB)
Title: Process for treating molten aluminum
IPC: C22B21/06
Filed: 1971-12-01
Abstract: 1348399 Refining aluminium ALUMINIUM CO of AMERICA 1 Dec 1971 [2 Dec 1970] 55759/71 Heading C7D A method of refining molten aluminium comprises passing the molten metal through a bed of submerged refractory bodies while introducing into the melt or non-reactive fluxing gas together with relatively small amounts of a gas containing free or combined chlorine. The preferred non-reactive gas is argon, while the preferred additive gas is chlorine, although aluminium chloride or hexachloroethane may be employed. The proportions by volume should preferably be such that up to 20 parts of chlorine are introduced with every 100 parts of non- reactive gas. The preferred refractory body is tabular aluminium. The flow of molten aluminium should preferably be countercurrent to the flow of gases. The chlorinaceous gas flow may be interrupted. Apparatus, Fig.1. Molten aluminium enters treatment vessel 10 through inlet 12 passing down leg 14 and up leg 18 to outlet 21. A bed 20 of refractory bodies is situated in the bottom of vessel 10 and the mixed gases are introduced through disperser 22 such that the gases rise through the bed in leg 14. Preferably the bed 20 is comprised of two portions, the supporting portion 26 of coarse refractory bodies while the upper portion 24 is formed of refractory granules. Impurities such as hydrogen gas inclusions, non-metallic oxides and metallic sodium are removed, and the resulting solids provide a dry skim 28 on the surface of the melt.
Patent GB-1182550-A (GB)
Title: Process for the preparation of 4-(2-Hydroxypropionyl) Morpholine
Inventor: NISHIO DAIJIRO
IPC: C07D295/185
Filed: 1968-11-25
Abstract: 1,182,550. Morpholine derivative preparation. FUJI SHASHIN FILM K.K. 25 Nov., 1968, No. 55838/68. Heading C2C. 4 - (2 - Hydroxypropionyl) morpholine is prepared by reacting #-propiolactone with morpholine in an ether.
Patent GB-1106448-A (GB)
Title: Improvements in dynamometers for well pumps
IPC: G01L1/02
Filed: 1966-12-16
Abstract: 1,106,448. Dynamometers. OSTERREICHISCHE MINERALOLVERWALTUNG A. G. Dec. 16, 1966 [Dec. 22, 1965], No.56337/66. Heading G1W. A hydraulic piston and cylinder type dynamometer for a well pump is brought into operating position in the force transmission path of the pump rod 10 (between a head 12 thereof and the crosshead 9 from which it normally depends) by means of a main pump 26 after the working spaces in the cylinders 17 have been connected to a cylinder 18 wherein a pressure fluid can be subjected to a pressure smaller than that required to bring the pistons and cylinders 16, 17 into operating position. With the two pistons 16 on a plate 13 on the crosshead 9, a lever 20 is operated to release the stress in a spring acting on a piston rod 19 in the cylinder 18 and apply low-pressure through conduits 22, 23 (provided with back pressure valves 24, 25) to the cylinders 17. By this deadstroke the pistons and cylinders 16, 17 are clamped between the plate 13 and a cylindrical under surface 15 of a cross-piece 14 on the head 12 of the rod 10. A high-pressure pump 26 is then operated by a handle 28 to supply pressure to the cylinders 17 sufficient to raise the head 12 off the plate 13 so that the pressure in the cylinders 17 thereafter provides a measure of the load on the rod 10 and a load diagram can be plotted e.g. by a drum-recorder. When a release valve 29 is opened the pistons and cylinders 16, 17 are freed and can be removed.
Patent GB-1208450-A (GB)
Title: Method of and apparatus for afterburning exhaust gases
Inventor: ANDERSSON LOUIS
IPC: F01N3/26
Filed: 1967-12-12
Abstract: 1,208,450. Burning exhaust gases. L. ANDERSSON. 12 Dec., 1967, No. 56340/67. Heading F4B. [Also in Division Fl] Exhaust gases produced during a combustion process, e.g. in an I.C. engine, furnace, gas turbine or jet propulsion power plant, flow through a conduit to an afterburning zone at a temperature sufficient for self-ignition in the presence of secondary air and the secondary air is supplied to the zone substantially uniformly distributed throughout the zone cross-section in an amount such that the temperature prevailing in the afterburning zone is above 950 C., preferably between 1000 and 1300 C. The supply of secondary air may be controlled by the flow of exhaust gases and the dimensions of the air flow passages. The air supply may be from a fan or blower driven by the exhaust gases. The exhaust gases may be throttled upstream of the afterburning zone to increase their temperature at the zone. In the illustrated embodiment, an afterburner 24 in the flue 55, 60 of a furnace 56 with a burner 57 comprises a hollow frame 62 with V-shaped vanes 20 thereacross and communicating at their ends with the interior 66 of the frame, which communicates through ports 68 with the atmosphere. The vanes 20 are slightly curved in the longitudinal direction, Fig. 9 (not shown), and the width a at the downstream ends of the vanes is about 3 mm. The spacing b between the vanes 20 is from six to twelve times the width a, preferably nine times. The afterburner 24 is connected to the flue by sleeves (74), Fig. 11 (not shown), providing the air flow ports 68 to the chamber 66.
Patent GB-1386990-A (GB)
Title: Air purifying apparatus having means for removal of nitrogen oxides
IPC: B01D53/56
Filed: 1972-12-07
Abstract: 1386990 Removal of nitrogen oxides from gases MATSUSHITA ELECTRONICS CORP and SUN-OH REINETSU CO Ltd 7 Dec 1972 [9 Dec 1971 22 Aug 1972] 56429/72 Heading C1A The invention comprises an apparatus for the removal of nitrogen oxides from gases, comprising a first reaction chamber including means for spraying high-temperature steam, and a second reaction chamber which is in communication with said first reaction chamber and includes a liquid absorbent, characterized by that during the passage of said gases through said first and second reaction chambers, said nitrogen oxides are converted to soluble substances through a gas phase reaction with said steam in said first reaction chamber, and then said soluble substances are dissolved into the liquid absorbent in said second reaction chamber. In a preferred embodiment, the temperature of the steam is 130 to 150 C., and the liquid absorbent is water or an alkaline aqueous solution whose temperature is 30 to 60 C.
Patent GB-1459408-A (GB)
Title: Goniolens
IPC: A61F9/009
Filed: 1973-12-11
Abstract: 1459408 Eye instruments M M KRASNOV 11 Dec 1973 [11 Dec 1972] 57343/73 Heading A5R [Also in Division G2] Examination of and operation on the corner of the eye's anterior segment, e.ig. goniopuncture, is carried out using a lens 1 which is made from a truncated cylinder with a concave base 2 which fits the cornea and a convex truncated surface 3. In use, the lens I is attached to a holder 5 which has a peg 7 which, when pressed against the eye, turns the drainage area 8 towards a laser beam 9 which punctures the tissue.
Patent GB-1179920-A (GB)
Title: Automatic telephone switching system.
IPC: H04Q3/42
Filed: 1967-12-19
Abstract: 1,179,920. Automatic exchange systems. HITACHI Ltd., and NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP. 19 Dec., 1967 [28 Dec., 1966], No. 57662/67. Heading H4K. In a system having a switching network through which paths are selected with the aid of a common marker, the latter M is seized on an outgoing call as soon as the first few digits have been received (via path T1) in a register sender ORS in order to try and set up a path T2 between the calling subscriber and a free trunk OGT in the relevant direction. If such a path cannot be found due to internal blocking then the marker is dropped. Whether or not a path is found, further digits are repeated over a link OSC between the register sender and the selected or a suitable free trunk OGT. When digit sending ceases the original path T1 is dropped, thereby freeing this path or parts thereof for immediate further selection and the marker is reseized in order to try and connect the caller to the trunk. If this cannot be done the call is abandoned. It is shown mathematically that this double use of the marker once with recycling (i.e. successive attempts at path finding using a different trunk at each attempt) before digit sending and once without recycling after digit sending leads to a lower blocking probability than the two known methods of using it viz. in either of the above two ways alone. It is also shown that the lowest blocking probability occurs when separate registers and senders are used.
Patent GB-1410788-A (GB)
Title: Gasoline fuels for internal combustion engines
IPC: C10L1/22
Filed: 1972-12-18
Abstract: 1410788 Motor fuel BADISCHE ANILIN & SODA FABRIK AG 18 Dec 1972 58259/72 Heading C5G A gasoline fuel contains (a) one or more diamides of C 11 -C 20  fatty acids with aliphatic polyamines of 2 to 6 C atoms and of 2 to 4 amino N atoms, and (b) one or more esters of C 11 -C 20  fatty acids or naphthenic acids with ethanolamines or iso-propanolamines. Examples of (a) are di(oleic acid amide) of diethylene triamine, di(stearic acid amide) of dipropylamine, triamine, di(palmitic acid) diethylene diamide, di(lauric acid amide) of methyldipropylene triamine and di(undecanoic acid amide) of triethylene tetramine. Examples of (b) are oleic acid esters of mono-, di and triethanolamines, palmitic, stearic and undecauolic acid esters and naphthenic and tallow oil acid esters and corresponding esters of propanolamines. Sterically hindered alkyl phenols, cresols or nylols, e.g. 2,4 di t-Bu phenol, 2,6 di-t-Bu p cresol and 2,4 dimethyl 6-t-Bu phenol may also be included. An upper cylinder lubricant, e.g. pure hydrocarbon or the residue from the oxo reaction of nonanol or decanol can be included.
Patent GB-1445346-A (GB)
Title: Magnetrons
IPC: H01J23/20
Filed: 1972-12-21
Abstract: 1445346 Magnetrons ENGLISH ELECTRIC VALVE CO Ltd 19 Nov 1973 [21 Dec 1972] 59134/72 Heading H1D A multicavity magnetron 1 having meansas described, straps 3 and 4-to lock together inphase cavities to ensure operation in the T 1 - mode, includes additionally a surrounding coaxial resonant cavity 5 which is weakly coupled via apertures 6 in the magnetron anode to alternate magnetron cavities. Due to the weak coupling with the coaxial cavity, the latter does not-as in a coaxial magnetrondetermine the magnetron frequency, but acts as a filter to remove side band output power. The output is coupled out through the slot 7 to the waveguide 8. The apertures 6 may be sealed by dielectric windows, or a ceramic cylinder may surround the anode 1, or the whole combined structure within cylinder 5 may be sealed and evacuated.
Patent GB-1356650-A (GB)
Title: Conveyor means
IPC: B65G53/00
Filed: 1971-12-23
Abstract: 1356650 Pneumatic conveyers S HIRANO and S NODA 23 Dec 1971 60028/71 Heading B8A [Also in Division B1] Particulate material conveyed along a conduit 41 by the suction created by a fan 19 within a housing 2 is separated from the transporting air upstream of the inlet of the fan by a screen 33 forming part of a by-pass tube 24 and is conveyed through said tube 24 by an auger 27 to be discharged into a tube 11 downstream of the outlet of the fan and be conveyed therealong by the air from said outlet. The discharge end of the by-pass tube 24 is closed by a valve 34 to prevent air recirculating through the by-pass tube, the valve being opened by the build-up of material therebehind. In an alternative embodiment Fig. 3 (not shown) the fan is replaced by a two stage fan. In a further embodiment Fig. 7 (not shown), a chamber (69) connected at opposite ends to a supply tube (70) and a discharge tube (71) has a by-pass tube (72) mounted concentrically therein and a fan (75) mounted in the annular space between the bypass tube and the chamber. A conically shaped screen (74) extends between the chamber walls and the by-pass tube downstream of the fan and a helical wire (82) is mounted on a shaft (80) to rotate therein. An auger (81) is also provided on the shaft (80) to rotate within the by-pass tube and a valve (83) is mounted to be movable along the shaft to close the end of the said tube.